WASET
    J.Zouhair and  D.Ellison,  Real-Time Physics Simulation Packages: An Evaluation Study.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2011, vol. 49(1). 21 - 26
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/7214.